Receptacle-forming machine.



F. W. BURPEE & E. T. HOSKINS.

RECEPTACLE FORMING MACHINE.

APPLICATION FILED JUNE 19. 1912.

Patented July 25, 1916.

4 SHEETS-SHEET I.

abtcwnaw F. W. BUBPEE & E. T. HOSK'INS.

RECEPTACLE FORMING MACHINE.

APPLICATION FILED JUNE I9. 1912.

l 1 92,273 Patented J My 25, 1916.

4 SHEETS-SHEET 2.

F. W. BURPEE & E. T. HOSKINS. RECEPTACLE FORMING MACHINE.

APPLICATION FILED JUNE 19, 1912. I l ,1 92,273. Patented July 25,1916.

4 SHEETS-SHEET 3.

FRANK W. IBUIRPEE AND EUGENE T. HOSKINS, 0F BELLINGHAM, WASHINGTON; l

HGSKINS ASSIGNOR T0 SAID BURPEE.

BECIEPTACLE-FORMIN MACHINE.

To all whom it may concern:

Beit known that W8,'FRANK W. BURPEE and Eugene T. Hosxrns, citizens of the Dominion of Canada and the United States, respectively, residing at Bellingham, in the county of Whatcom and State of Washington, have invented certain new and useful Improvements in Receptacle-Forming Machines, of which the following is a specification. V

The present invention pertains to an improved machine of the above type primarily devised for bending asector shaped paper blank to conical form, and has particular reference to novel blank feeding and bending devices combined in an improved manner to provide for uninterrupted travel of the forming arm of the machine.

The invention consists in certain novel features and combinations of parts as set forth in the following description and succinctly defined in the annexed claims.

With reference to the accompanying drawings wherein similar reference characters designate c0rrespon ling .parts throughout the several views: Figure 1 is a horizontal sectional plan of a machine embodying the features of our invention in such form as now preferred by us, the same being shown with the cross head of the feeding device in advanced position. Fig. 2 is a fragmentary side elevation of the machine showing the feeding device and one of the forming devices at the termination of a blank feeding operation. Fig 3 is an elevation of the forming arm of the machine viewed from the upwardly moving side of the carrier, portions of the latter being broken away. Fig. 4 is a fragmentary section on line 4-4 of Fig. 3.. Fig. 5 is a vertical section on line 55 of Fig. 1, and Fig. (Sis a front elevation of the carrier.

In the present embodiment we have shown a circular series of horizontally disposed forming devices 1 connected with a vertical rotatable carrier or spider 2 and combined with a horizontal blank feeding device 6 which. as will be observed,lies at an oblique angle to the plane of the carrier. Carrier 2 is in the form of an annular plate or ring,

Specification of Letters Patent. i Pajbgntgd July 25, 1916,

Application filed June 19, 1912. Serial No.704,676.

spur gearing 4: with shaft 4 to which a pul ley 4 is secured for application of power tovrotate carrier 2 continuously in the direction indicated by the arrow in Fig. 1.

A series of forming devices are mounted in a circle upon the carrier plate 2, their axes being parallel with the axis of the carrier plate. These forming devices each comprise a central mandrel 10 and exterior form sections, consisting of the two main sections 11*, 11, and the gripping finger 11, which is located between the sections 11 and 11 The two sections 11 and 11, are pivotally mounted on brackets 2 extending from the carrier 2, their pivotaxes being substantially parallel with the axis of the carrier 2 and mandrel 10, and at opposite sides of the central section 11. These sections are pivoted rearwardly of the mandrel 10, relative to the direction of the movement of the mandrel. The central section 11 is supported on a. transverse pivot 12' which is located to the rear of the carrier,vor beyond the base of the mandrel 10, whereby it may be given a slightoswinging movement toward and from. the mandrel to facilitate receiving and then holding the blank. Arm 11 is an extension of central finger section 11, and carries roller 16 which engages the edge surface of the fixed circular band and cam track 15. This is cut away to form a recessed surface 15" and terminal inclines 15, whereby the central finger section 11 will be dropped away from mandrel 10 before reaching the blank-receiving position and closed upon the mandrel to hold the blank, just after the blank is placed in position. By reason of the position occupied by these parts at the time, gravity forms the'95 opening force. The pivot shafts 12 and 12 of form sections 11, 11*. extend to the rear of the carrier plate 2 and are provided with rock arms 13, 13f which carry cam rolls 14, 14 and strike lugs 17, 17'. Cam rollers H,

14 engage opposite sides of band 15, the latter being cut away, as is shown in Figs. 1 and 3, to permit rocking of the pivot axes 12, 12 and the opening and closing of the form sections 11 11 The opening movement is initiated and made certain by contact of strike lugs l7, 17 with the fixed tappets or fingers 18, 18, and the closing is done by engagement of the rollers 14, 14 with the angularly placed lugs 15*, 15", carried by the track ring 15.

Each forming device is provided with an ejector comprising a segmental head 19 fitting on the base end of mandrel 10 and secured to spring retracted slide stems 19' which are guided in suitable apertures of carrier 2 for movement of the head longitudinally of the inandrel. For advancing the stems 19 we have shown companion push arms 20 secured to a spring retracted rock arm 21 pivotally supported on standard 3' in the path of a sweep 22 which is fixed to a sleeve 23 journaled on a stub shaft 32, of standard 3 and connected by spur gears 24 with shaft 5.

Feeding device 6 comprises a cross head 40 slidably supported on horizontal guides 41 of a frame 42 for reciprocation in a path extending obliquely of the adjacent forming device 1, and connected by means of a' link 43 with a rock arm 44 which is operated from shaft 4, as will be later understood, to advance head 40 to meet each forming device 1. Positioned over the path of head 40 and secured to vertical extensions 42 of frame '42 is a table 50 having vertical back stops 50, 50" for the receptacle blanks, as b, and provided with a forwardly extending edge guide 51 and similar bottom guides or supports 52, the latter of which extend beneath top guides 53, provided with upwardly turned rear end'portions. One top guide is fixed to edge guide 51 and the remainder secured to a cross bracket 54, fixed to the outer, bottom guide 52, (see Figs. 1 and 5). The blanks b are advanced successively from table 50 in guiding engagement with guide 51 and positioned between the guides 52, 53, in the path of gravity set push catches 55 on cross head 40, through the medium of a pneumatic device or cup 56, connected with a flexible suction pipe 56' supported on an arm extension 57'of a vertically movable slide bar 57 which is mounted in guide bosses 58 on cross head 40 and equipped with aroller 59, engaged with a grooved guide arm. 60 extendlng alongside the path of said head. Arm 60 is pivoted, as at 60', to a forwardly extending bracket 42" of frame 42, and normally bears on a rearwardly disposed cam 61 which is secured to a shaft 45 and carries a crank pin 44" connected by a rod 44 with rock arm 44. Shaft 45, which is journaled on frame 42 and on a stand 46, is connected by angle gearing 45"with a shaft 47 which is jour naled on stands 46, 46" and connected by spur gearing 47' with shaft 4. This driving connection is suitably designed to efi'ect continuous rotation of cam 61 in the direction indicated by the arrow in Fig. 2, in proper time to advance cross head 40 to meet each forming device 1. Cam 61 embodies a sector section C, which lies cross center from crank pin 44", and throw sections A, B the former following and the latter leading section C and connecting with a depressed section D extending to the rear end of throw section A. Throw sectionA is of sufiicient length to hold arm 60 elevated during substantially three quarters of the return stroke of pin 44, whereby the sucker carrying bar 57, which has been raised during the-termi- 'nal portion of the advance movement of cross head 40 to thereby withdraw cup 56 from the blank, the blank being held by guides 53, will be maintained elevated until cup 56 is brought into proximity to table 50, at which time, with arm 60 encountering the cam section D, cup 56 is lowered into engagement with the forward portion of the uppermost blank a little in advance of the reversal of stroke of cross head 40, thus enabling the cup to grip the blank and eifect a slight raising of the latter to free it from the underlying blanks before the advance stroke, is started. Following this action,

through engagement of arm 60 with cam sections B and C, the blank is first elevated, and then gradually lowered during its advance movement and carried forwardly between guides 52 and 53.

Reference numeral 65 indicates an elevated I container having a discharge spout 65' posi- During advance movement of cross head 40, catches 55 engage the rear edge portion of a blank previously positioned between guides 52, 53 and forward the same beneath spout 65' into a forming device 1 as it passes upwardly through the plane of feed. In this connection it will be observed that the forward end portions of catches 55, through the provision of spring back stops 55, can yield upwardly to free themselves from the blank and the adjacent form sections 11, 11

The outer ends of mandrels 10 are beveled, as shown at 10',,this being at the side which is down when the blank is fed thereto. The forming members are moving constantly through their circular path. Beveling the end'of the mandrel permits passing the forward edge of the blank under, sooner than would otherwise be possible. In fact, the blank may be bent downward by this incline without harm. This expedient makes postappets 18, 18 are encountered, prior to which form section 11 has opened by gravity, as hereinbefore set forth. l

The arrangement of the forming devices upon the carrier wherein their axes are parallel with the axis of the carrier, enables grouping a larger number upon a carrier of given dimensions than any other arrangement. This is forcibly seen by comparing the present machine with that shown in patent to Burpee at al, No. 1,099,839, wherein the formers are placedradially of the axis of the carrier. Compactness is further secured by hinging the main exterior form sections to swing toward and from the path of movement of the inner form of mandrel, in which positions one forming mechanism,

when open, does not interfere with any other forming mechanism. This arrangement places one of the outer forms 11 inwardly of the path of movement of the inner form and the-other 11 outwardly of this path. As an inspection of Fig. 6 will show, the forms may be placed very close together without producing any interference of parts.

Having thus described our invention what we claim as new, and desire to secure by Letters Patent of the United States of America,

1. In aforming machine of the character described, a carrier supported for movement, means for rotating said carrier continuously, a forming device on'said carrier comprising a mandrel and outer form sections, and means at the side of the path of said carrier for feeding a blank between the mandrel and outer form sections in a direction parallel with the axis of the mandrel during move-- ment of'said carrier.

2. In a forming machine of the character described, a carrier supported for movement, a plurality of forming devices on said carrier spaced lengthwise thereof, said forming devices'comprising non-rotatable mandrels and outer form sections, means for operating said carrier continuously, and means at the side of the path of said carrier for feeding blanks and placing the same into said forming devices successively during movement of said carrier.

3. In a forming machine of the character described, a carrier supported for movement,

a mandrel and outer relatively movable form sections on said carrier with their axes substantially perpendicular to their direction of movement, means for moving said carrier, means at the side of the path of said carrier for feeding a blank lengthwise of said mandrel to thereby place a blank on said outer form sections, means for operating said outer form sections to bend the blank about said mandrel, and means for operating said blank feeding means to feed a blank during movement of the carrier.

4. In a forming machine of the character described,'a carrier supported for movement, means for moving said carrier continuously, companion forms arranged on said carrier one in advance of the other and with their axes perpendicular to the plane of their path during movement of said carrier.

5. In a forming machine of-the character described, a carrier supported for movement, a forming device comprising relatively fixed and movable interior and exterior forms supported on said carrier one in advance of the other in the path of their movement, means for placing a blank between said forms by movement lengthwise the forms and during movement of said carrier, and means for effecting movement of said movable form with respect to said fixed form by and during movement of said carrier. I

6. In a forming machine of the character described, a carrier supported for movement in a definite path, forming devices each including an interior form fixedly mounted on said carrier, and relatively movable exterior form sections, said forming devices being arranged one in advance of the other on said carrier relatively to the direction of their path of movement, said movable exterior form sections being mounted on said carrier at opposite sides of the path of movement of the interior forms.

7. In a forming machine of the character described, a rotatable carrier, a forming de-' vice including an interior form; and relae.

tively movable exterior form sections, said forming devices belng arranged one in advance of the other on said carrler relatively to the direction of their path of movement,

said exterior form sections being hinged to said carrier alongside the first named interior form section and respectively at opposite sides of said path of movement.

8. In a forming machine of the character described, a rotatable carrier, a forming de-,. vice on the carrier having an inner form supported by one end from the carrier with its axis approximately parallel with the axis of the carrier, outer forms pivoted upon axes substantially parallel with the axis of said inner form and positioned to, swing said outer forms respectively inwardly and outwardly from the path of movement of said inner form.

9. In a forming machine of the characterdescribed, a rotatable carrier, a'forming device on said carrier including a mandrel, an

exterior form section located rearwardly of vice on said carrier including a mandrel projecting endwise from the plane of the carrier and provided with an angular side surface at its outer end, and an exterior form section located rearwardly from the mandrel in their path of movement and movable toward and from said mandrel, exterior form sections hinged at their rear edges to the carrier at opposite sides of said mandrel, and means for feeding a blank into said forming device to contact with the angular side face of the mandrel thereof.

11. In a forming machine of the character described, a carrier supported for rotation, a forming device on said carrier comprising a non-rotatable mandrel, exterior form sections lying one outwardly of the other-.relatively to the axis of said carrier and pivoted at one edge for swinging toward and from said mandrel, another relatively movable exterior form section lying between said firstinamed exterior form sections and movable independently thereof, means for swinging said last named exterior form section, and means for swinging said first named ex; terior 1 form sections subsequently to the swinging movement of said last named exterior form section.

12. In a forming machine of the character described, a carrier supported for rotation, a forming device on said carrier comprising a mandrel having its axis substantially parallel with the axis of the carrier and exterior form sections lying respectively outwardly and inwardly of the mandrel with respect to the axis of the carrier, and means for closing said exterior form sections upon the mandrel to thereby mold a blank about said mandrel.

13. In a forming machine of the character described, a carrier supported for rotation in a vertical plane, a forming device on said carrier comprising a mandrel and exterior form sections on opposite sides thereof with one outwardly of the other relatively to the axis of said carrier, said mandrel projecting endwise'from the plane of said carrier, said exterior form sections being supported for relatively to the axis of said carrier, said' exterior form sections being supported for swinging movement toward and from the 'mandrel, means for closing said form sections by and during movement of said carrier, blank feeding means at the side of the path of said carrier, and means for operating said blank feeding means for feeding a blank into said forming device during movement of said carrier.

15. In a forming machine of the character described, a carrier supported for rotation in a vertical plane, means for rotating said carrier, a forming device on said carrier projecting endwise from the plane thereofand including relatively fixed and movable forms located respectively in forward and rear positions in the path of their movement, means for feeding a blank on a line extending at an acute angle to the plane of said carrier, and means for operating said feeding means to insert a blank in said device during movement of the carrier.

16. In aforming machine of the character described, a carrier supported for rotation in a vertical plane, means for rotating said carrier, a forming device on said carrierprojectin'g endwise from the plane thereof including an interior form, and an exterior form section placed rearwardly in the path of their travel from the interior form and movable toward and from said first form, reciprocatory blank feeding means supported for movement in a path extending at an acute angle to the plane of said carrier, and means for operating said feeding means to insert a blank in said device during movement of the carrier. 1

17. In a forming machine of the character described, a support, a form on said sup port, an ejector for saidform having a stem slidably mounted on saidsupport, a spring retracted push arm for said stem, and means 1 for advancing said arm by and during movement of sald support. I 18. In a forming machine of the character described, a support, a relatively non-rota- 7 form sections for bending a blank about said mandrel mounted on said support at opposite sides of said mandrel, another exterior form section mounted on said support and free of said first named exterior form. sections for relative movement toward and from said mandrel, and means for operating said first and last named exterior form sections one in advance of the other by and during movement of said support. 4

20. In a forming machine of the character described, a rotatably supported carrier, a mandrel fixedly mounted on said carrier, an

exterior form on said carrier comprising movable side sections and a relatively movable intermedlate section, and means for operating said side and intermediate sections of said exterior form one in advance of the other to bend a blank about said mandrel, said means comprising a cam track at the side of said carrier and cooperating engag ing parts on said sections.

21. In a forming machine of the character described, a rotatably supported carrier, a mandrel fixedly mounted on said carrier, exterior form sections mounted on said carrier for movement toward the mandrel independently of one another, and means for closing said exterior form sections one in advance of the other by and during movement of said carrier to bend a blank about said mandrel comprising a cam track arranged at the side of the path of said carrier, and cooperating track engaging parts on said form sections. 22. In a forming machine of the character described, a rotatably supported carrier, a mandrel on said carrier, exterior form sections mounted on said carrier for relative movement to bend a blank about said mandrel, a cam track at the side of the path of said carrier, a cam track engaging members on said exterior form sections each adapted for engagement with a respective face of said cam track for controlling the operation.

of said form sections. and another exterior form 860131011 mounted on sald carrier and movable independently of said first named exterior form sections for holding a blank against said mandrel for bending by the first named exterior form sections.

' 23. In a forming machine of the characfor bending a blank about the latter, an intermediate relatively movable exterior form section mounted on said carrier for holding a blank against said mandrel, cam track engaging parts on said exterior form sections, and a cam track means arranged at the side of the ,path of said carrier to be engaged by said cam track engaging parts to close said first named exterior form sections, and said intermediate form sections successively.

24:. In a forming machine of the character described, a rotatably supported carrier, a mandrel on said carrier, exterior form sections mounted on said carrier on opposite sides of said mandrel for relative movement for bending a blank about said mandrel, cam track engaging parts on said exterior form sections, a cam track means arranged at the side of the path of said carrier to be engaged by said cam track engaging parts to close said exterior form sections, and abutment means arranged beyond said cam track means adapted for engagement by the cam track engaging parts for opening said exterior form sections.

25. In a forming machine of the character described, a continuously movable carrier, a central mandrel supported by one end therefrom and constituting the inner forming member, outer form members carried 'by the same carrier and movable toward. and from the mandrel, means for inserting the blank in the form-by movement lengthwise the mandrel, the outer end of the mandrel being beveled at one side whereby an earlier insertion of the blank is possible during its insertion.

26. In aforming machine of the character described, 'a continuously movable carrier, mandrels constituting inner forms mounted upon said carrier and projecting outwardly therefrom, outer forms movable to coiiperate with the mandrel to mold a blank,- means for feeding a blank length: wise the mandrel, the outer end of the mandrel being beveled on one side whereby an earlier-insertion of the blank is possible.

27. In a forming machine of the character described, a continuously moving carrier, a series of blank molding formers mounted on the carrier, each-comprising a central mandrel and movable outer formers cooperating therewith, the axes of said formers projecting from the plane of movement of their carrier, a blank feeding mechanism presenting the blanks to a former by movement lengthwise the axis ofthe former, the outer end of the mandrel being beveled on one side to deflect the blank when inserted.

28. In a forming machine of the character described,in combination, a continuously rotative carrier, a series of forming molds mounted in circular position on the carrier with'their axes substantially parallel the rotative axis of the carrier, said forming molds each containing a central mandrel'and coiiperating outer forms movable toward In testimony whereof We affix our signaand from the mandrel, a blank feeding mech- 3 tures inpresence of two Witnesses.

anism delivering the blank by movement FRANK W. BUR-FEE. lengthwise the molds, the outer ends of the EUGENE T. HOSKINS. mandrels being beveled at one side to con- Witnesses:

form to the plane of movement of the blank A. H. CAMPBELL,

- being inserted. JOHN F. WELLS. 

